Forced to pay a blackmailer an impossible sum, Eun-soo and Kyung must restart their dangerous business to meet the one week deadline. As they scramble for the money, they desperately hunt for the culprit who seems to be watching their every move. The truth is closer than they think.

As Detective Kyung-do gets closer to the truth about the Phantom case, his own superior Tae-gu frames him as a corrupt mole. With his most dogged pursuer neutralized, Tae-gu now turns his attention to Eun-soo, ordering a rookie to tail her young daughter Su-ah. Now, everyone is a target.